Mechanical movement



y W, S. MARSHALL.

Mechanical Movement'.

(No Model.)

Nq. 227,911.- Patented may zinsso.

MMM j'MW/W l /UZM NJPETERS. PHOTO-LITHOGRAPMER, WASHINGTOH, D C

UNiTED STATES PATENT OFFICE..

WILLIAM S. MARSHALL, OF BATAVIA, ILLINOIS.

MECHANICAL MOVEMENT.

SPECIFICATION forming part of Letters Patent No. 227,911, dated May 25, 1880.

Application filed March 15, 1880. (No model.)

To all whom it may concern:

Be it known th at I, WILLIAM S. MARSHALL,

of Batavia, in the county of Kane and State of Illinois, have invented a new and useful Improvement in Mechanical Movements for Windmills, of which the following is a speciication, reference being had to the accompanying drawings, illustrating the improvement, in whichi Figure lis an elevation of a wind-wheel and other mechanism, looking toward the rear face of said wheel, and embodying' my improvements, Fig. 2, a side elevation of the same mechanism, looking at Fig. 1 in the direction indicated by dart fc, Fig. l; Fig. 3, a sectional elevation of the ratchet-wheels on the lower shaft; Fig. 4, an elevation of the reciprocating rack and pinions, also pitman-connection, detached from thc other part-s; Fig. 5, an inside face view of one ofthe ratchet-wheels on the shaft to be driven.

The object of the present invention is to attain a rotary motion from the reciprocating motion of the pitman of a windmill.

rIhe nature of invention consists of a reciprocating rack placed between and operating two pinions which are attached to and drive two pulley wheels in oscillating movements and in opposite directions. rIhe pulley-wheels, by means of cords or belts, drive loose pulleys on the shaft to be driven, and ratchet-wheels IiXed to said shaft engage spring-pawls of ordinary construction on the loose pulleys, so that each loose pulley alternately gives a forward movement to the shaft to be driven, as the whole is hereinafter fully described and shown.

A represents the tower which supports the wind-wheel B, and G H I J is the frame which supports the mechanism. G is the crankwheel, and D the crank or pitmau to the windwheel.

F F are pulley wheels, whose shafts have single bearings, respectively, in long boxes N on the top of the frame part Gr. The pulley wheels and their respective shafts are placed in such positions relative to each other that pinions K K, placed on the inner ends of the shafts of wheels F, will lie in the same vertical plane and far enough apart for a double cog-rack, E, to engage the cogs of the pinions and give to them an oscillating movement in reverse directions. The guide M is supported in a proper position to keep the rack E vertical in its movement by means of a thin metallic frame, O, whose ends are attached to frame-work G, saidframe being cut away, so as not to interfere with the movement ofthe pinions K, as shown in Fig. 1.

A lower shaft, P, is placed in any desired position relative to the wheels F, but parallel with the shafts of said wheels, and to it are rigidly afixed two ratchet-wheels, It, and on the same shaft are placed two loose pulleys, S, which are countersunk or recessed out on their inner faces to such depth asV to correspond with the thickness of the wheels R, so that spring ratchet -pawls T, attached to the peripheries of the countersunk parts, will engage the ratchet-wheels It and turn them when the loose pulleys are turned.

Ordinary springs are to be or may be employed to engage arms placed, respectively, on the wheels F to assist in reversing the motion ofthe wheels in the ordinary manner.

I am well aware that various devices and mechanism havebeen heretofore used to attain rotary motion from windmills. I .therefore confine myself to the construction and combination shown.

I claim as new and desire to secure by Letters Patent ofthe United Statesl. rIhe combination of the two wheels F, placed such a distance apart as to receive the pinions K between them, and the rack E between the pinions with the guide M and frame 0, as specified, for giving oscillating motions to the wheels F in opposite directions.

2. The combination of the wheels F, pinions K, frame O, guide M, rack E, pulleys S, ratchets R, pawls T, and cords or bands L, as and for the purpose, specified.

WILLIAM S. MARSHALL.

Witnesses:

G. L. OHAPIN, A. G. MoRnY. 

